Flyers for textiles machines



'F. RIDGWAY 2,929,194

FLYERS FOR TEXTILES MACHINES March 22, 1960 Filed March 1, 1957 UniteStates Ptent Claims priority, application Great Britain March 24, 19563Claims. ((157- 116) This invention relates to flyers, particularly foruse in uptwisting machines using double flanged bobbins. The

flyer to which the invention relates is of the type comprising a metalcap having a rolled over edge which revolves coaxially around the upperflange of the bobbin, the yarn guide being located in the rolled overedge.

The object of the present invention is to provide improved means forcontrolling the amount of resistance to the rotation of the flyer by thebobbin upon which it rests.

The invention comprises the interposition between the flyer cap havingthe yarn guide carried thereon and the top of the yarn bobbin whichrevolves with the uptwister spindle, of a plate or disc having a felt orother friction material secured upon its upper face which supports thecap and an India rubber or other'friction pad secured to its undersidewhich rests on the upper end of the yarn bobbin, the cap having aspindle detachably secured thereto which projects downwards and revolveswithin a sleeve like portion of a member which is free within the upperend of the uptwister spindle.

The accompanying explanatory drawing is a sectional view of a yarnbobbin with its driving means and of the flyer which revolves about theupper end of the bobbin, showing one form of my improved means forcontrolling the rate of rotation of the flyer relatively to the bobbin.

The spindle by which the bobbin a is revolved comprises a spindle blade12 and a flange b which has pegs c thereon extending into holes in thebobbin flange d so as to drive the bobbin. In the example illustrated,there is an adaptor bushing e between the spindle blade b and the bobbina.

The flyer, which is of the type described in my prior application No.469,698, now Patent No. 2,838,904, comprises a metal cap f, in theperipheral edge of which is secured a yarn guide g. Such cap is usuallymade of aluminum and in the example illustrated there are metal plates hand i secured to the upper and lower sides of the cap. A spindle j issecured to the cap by a nut k, and such spindle revolves within a sleevelike part m, which has a flange n adapted to rest on the top of thespindle blade b, and a bushing 0 secured in the top of the blade, and apart p which extendsinto the spindle.

A balloon spring q extends between the part p and the service positions.When it is desired to Withdraw the flyer and associated parts from thespindle, a sharp pull on the flyer will cause compression of the balloonspring q so that it will pass through the bushing 0 and allow the saidwithdrawal.

Disposed around the member in but relatively free therefrom is a plateor disc 1, to the underside of which a pad u, preferably of Indiarubber, is secured and to the upperside of which a pad v, preferably ofbelt, is secured. The pad u rides on the top of the bobbin a and theplate i on the underside of the flyer rides on the padv.

It will be appreciated that the bobbin a tends to revolve the flyer fdue to the friction between the bobbin and the pad u and the frictionbetween the pad v and the disc i secured to the underside of the flyer.The strength of such frictional drive can be varied by using differentmaterials for the pads u and v and/or by adjusting the weight of theflyer. This can be effected by using different weights or thicknesses ofthe plates or discs h and i.

When the device is to be placed in position initially, the part m with pand ballon spring q are placed in and on the spindle b and'bush 0; andthe spindle j, without the flyer f, pads u and v and the nut k, isplaced in the part m, when the washer r and split spring ring r aresecured in place. The plate t with its pads u and v is now placed inposition. The flyer is then placed on the spindle j and the nut k fittedto secure the flyer to the spindle j.

What I claim is:

1. An improved flyer driving arrangement for use in an uptwistingmachine comprising, a rotatable spindle driven by the machine and havingan opening extending axially inward from its free end, a yarn bobbinmounted on the spindle for rotation therewith and extending axiallybeyond the free end thereof, a flyer cap having a guide thereon mountedon the outer end of the bobbin, a pin secured centrally of the flyer capand extending into the spindle opening, and means for driving the flyercap from the bobbin comprising a disc having a pad of friction materialsecured to its underside which rests upon the bobbin and a pad offriction material secured to its upper side on which the cap rides, thesaid pads being of different texture and different surface area.

2. An improved flyer driving arrangement in accordance with claim 1, inwhich the pin is detachably secured to the flyer cap, and means on thepin for securing a metal plate to the flyer cap for engagement with thefriction pad on the upper side of the disc.

3. A flyer as claimed in claim 2, in which the friction pad on which theflyer cap rides is made of felt and the friction pad which rides on thebobbin is made of rubber.

References Cited in the file of this patent UNITED STATES PATENTS2,353,100 Winslow July 4, 1944 2,499,726 Cotterill Mar. 7, 19502,838,904 Ridgway June 17, 1958 FOREIGN PATENTS 429,116 Great BritainMay 24, 1935 1,108,307 France Aug. 14, 1955

